Explore our furnaces and see why the HeatMasterss G Series is the most durable, easiest to use, and consistently earns the highest efficiency rating in the industry.
G Series
Four Reasons to Choose
a HeatMasterss Furnace
We chose HeatMaster after looking at boiler review videos, warranty length, construction materials, and the control system. And even though my wood supply is free, I looked at efficiency because I wanted something that would get great run times.
The Zell's
Smokeless Loading Handle
The Smokeless Loading Handle turns
on the fan and vacuums the smoke up the chimney and away from you while loading.
EZ Clean Handle
Cleans heat exchange tubes quickly
and easily.
Ultra Efficient Heat
Exchanger
More efficient heat transfer to your water means few BTUs wasted and more heat for your home.
Insulated Hinged Rear Door
Convenient access to plumbing,
fan motor and electrical components.
Recirculation Pump
Faster heat when you need it thanks to the recirculation pump that keeps the water temperature consistent from top to bottom and provides greater heat storage capacity.
Cruise Control for Your Furnace
Oxygen and fuel (smoke) are precisely mixed to achieve the desired BTU output while maximizing performance and reducing emissions in all conditions.
Large Capacity Firebox
With a larger firebox, the G Series can heat a greater area while increasing time between loading the furnace. The full refractory floor provides consistent heat from corner to corner so the wood burns consistently and doesn’t “bridge” or hang up.
Tornado Combustion Chamber
Patent Pending
The longer chamber swirls the hot air in a tight spiral, meaning a more complete combustion resulting in higher efficiency, lower emissions and reduced fuel consumption.
Spray Foam Insulation
Minimize heat loss thanks to closed cell spray foam that provides a seamless, dense insulation with an outstanding R-value, forming an effective air barrier.
Smokeless Loading Handle
The Smokeless Loading Handle turns
on the fan and vacuums the smoke up the chimney and away from you while loading.
EZ Clean Handle
Cleans heat exchange tubes quickly
and easily.
Ultra Efficient Heat
Exchanger
More efficient heat transfer to your water means few BTUs wasted and more heat for your home.
Insulated Hinged Rear Door
Convenient access to plumbing,
fan motor and electrical components.
Recirculation Pump
Faster heat when you need it thanks to the recirculation pump that keeps the water temperature consistent from top to bottom and provides greater heat storage capacity.
Cruise Control for Your Furnace
Oxygen and fuel (smoke) are precisely mixed to achieve the desired BTU output while maximizing performance and reducing emissions in all conditions.
Large Capacity Firebox
With a larger firebox, the G Series can heat a greater area while increasing time between loading the furnace. The full refractory floor provides consistent heat from corner to corner so the wood burns consistently and doesn’t “bridge” or hang up.
Tornado Combustion Chamber
Patent Pending
The longer chamber swirls the hot air in a tight spiral, meaning a more complete combustion resulting in higher efficiency, lower emissions and reduced fuel consumption.
Spray Foam Insulation
Minimize heat loss thanks to closed cell spray foam that provides a seamless, dense insulation with an outstanding R-value, forming an effective air barrier.
Models
G4000
The G4000 is the perfect marriage of size, performance and efficiency for heating a single residence or multiple buildings up to 4000 ft2.
- Approx. Heating Space* 4,000sq. ft.
- 8 Hour Burn Rate 68,025 BTU/hr**
- Water Capacity (US Gallons) 116 gallons
- Firebox Volume 8.5 ft3
- Recommended Wood Length 18-20"
- Firebox Dimensions (L” x W” x H”) 23" x 22" x 29"
- Firebox Door 20" x 20"
- Weight 1,448 lbs
- Outlets 1 set of 1” and 1 set 1.5"
- Chimney Size 6”
- Dimensions*** (L” x W” x H”) 59" x 42" x 81"
*Well-insulated building. **BTU’s are approximate and will vary depending on fuel quality. *** Height of the furnace is to the top of the lift hook
G7000
The G7000 was purposely designed for larger applications and multiple structures. A larger firebox gives greater heating capacity and long burn times for buildings up to 7,000 ft2.
- Approx. Heating Space* 7,000 sq. ft.
- 8 Hour Burn Rate 129,866 BTU/hr**
- Water Capacity (US Gallons) 234 gallons
- Firebox Volume 16.5 ft3
- Recommended Wood Length 20-24"
- Firebox Dimensions (L” x W” x H”) 29" x 29" x 33.5"
- Firebox Door 20" x 20"
- Weight 2,035 lbs
- Outlets 1 sets of 1” and 1 set 1.5"
- Chimney Size 6”
- Dimensions*** (L” x W” x H”) 69" x 50" x 84.5"
*Well-insulated building. **BTU’s are approximate and will vary depending on fuel quality. *** Height of the furnace is to the top of the lift hook
G10000
The G10000 was purposely designed for larger applications and multiple structures. A larger firebox gives greater heating capacity and long burn times for buildings up to 10,000 ft2.
- Approx. Heating Space* 10,000 sq. ft.
- 8 Hour Burn Rate 194,946 BTU/hr**
- Water Capacity (US Gallons) 274 gallons
- Firebox Volume 23.6 ft6
- Recommended Wood Length 20-24"
- Firebox Dimensions (L” x W” x H”) 42" x 29" x 33.5"
- Firebox Door 20" x 20"
- Weight 2,564 lbs
- Outlets 2 pairs 1.5"
- Chimney Size 6”
- Dimensions*** (L” x W” x H”) 81" x 50" x 84.5"
*Well-insulated building. **BTU’s are approximate and will vary depending on fuel quality. *** Height of the furnace is to the top of the lift hook
Financing
- Make your purchase right away and be ready for winter
- Get online approval in minutes
- Avoid high credit card interest
- No hidden fees and no penalty for early payment
To Apply, Talk to Your Local Dealer
